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This paper presents expressions for the transverse electromagnetic (TEM) parameters of high-frequency shielded and coupled cylindrical striplines that can support a variety of compact high-power RF/microwave circuits, including filters and directional couplers. In the electrostatic domain, the problem is to solve for the even- and odd-modes the Laplace equation of homogeneous cases, with fixed boundary...
This article presents analytical expressions for the electromagnetic parameters (even- and odd-mode characteristic impedances (Z0e, Z0o) and coupling coefficient k) of micromachined microstrip directional couplers (MMC) at characteristic impedance of 50 Ω. The analytical expressions can be deduced from rigorous analyses using method of moments (MoM) analysis and curve-fitting techniques. An analysis...
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